Coral Spawning turning water Yellow?

[shaunw60]

120g FWLR and SPS corals. Geo-Reef Calc Reactor. Euro Reef Skimmer

450ppm \
DKH 12. Amonia 0, Nitrates 0, PH8.52 - Yellow water
25% water changed twice in past week, water still has a yellow tinge to it. Protein skimmer is producing golden waste at a high rate requiring emptying the collection cup two to three times a day. I have heard that my corals may have spawned and no amount of filtration will clear up the water. I will continue to change 25% over next couple of days.

Is spawning a direct cause for yellow tinge in my water?

 

[Anonymous]

Sounds like algae.

Do you happen to have a UV light plumbed into the system?

 

[shaunw60]

No UV sterilizer installed yet, although I hear they keep your water calrity really clear

 

[Anonymous]

Especially if you have algae.

I would be willing to wager that you are not having a spawning event. You need to find out where the excess nutrient is coming from.

 

[Anonymous]

Run a good quality activated carbon on the tank, that should help whatever it is.

 

[shaunw60]

I am really starting to think that this may be related to the new batch of Seachem salt purchased three weeks ago. i have tested a small batch with some RO water and it in fact has turned the water into a dark green cloud. I will purchase some trusty Red Sea (used for 1 1/2 now) and see.

Skimmer is dialed down but still producing a lot of waste

 

[Anonymous]

The color of the salt and RO water is fine until you mix them? I assume the specific gravity of the newly mixed, green water is normal, right? This is really weird. :?

 

[shaunw60]

UPDATE - Salt replaced and ran some sechem matrix carbon in the Fluval cannister for a couple of days - tank has never looked better.

Corals and fish are doing well. Seachem confirm possible poor batch of salt.

 

[Anonymous]

that's great news!